EP0307019A3 - Apparatus for modifying pixel data stored in a random access memory - Google Patents
Apparatus for modifying pixel data stored in a random access memory Download PDFInfo
- Publication number
- EP0307019A3 EP0307019A3 EP88201614A EP88201614A EP0307019A3 EP 0307019 A3 EP0307019 A3 EP 0307019A3 EP 88201614 A EP88201614 A EP 88201614A EP 88201614 A EP88201614 A EP 88201614A EP 0307019 A3 EP0307019 A3 EP 0307019A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- random access
- data stored
- access memory
- pixel data
- modifying pixel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T15/00—3D [Three Dimensional] image rendering
- G06T15/10—Geometric effects
- G06T15/40—Hidden part removal
- G06T15/405—Hidden part removal using Z-buffer
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Geometry (AREA)
- Computer Graphics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Software Systems (AREA)
- Image Generation (AREA)
- Controls And Circuits For Display Device (AREA)
- Color Image Communication Systems (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8718807A GB2207840B (en) | 1987-08-07 | 1987-08-07 | Method of and apparatus for modifying data stored in a random access memory |
| GB8718807 | 1987-08-07 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0307019A2 EP0307019A2 (en) | 1989-03-15 |
| EP0307019A3 true EP0307019A3 (en) | 1990-02-07 |
| EP0307019B1 EP0307019B1 (en) | 1994-09-28 |
Family
ID=10622006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP88201614A Expired - Lifetime EP0307019B1 (en) | 1987-08-07 | 1988-07-26 | Apparatus for modifying pixel data stored in a random access memory |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4924415A (en) |
| EP (1) | EP0307019B1 (en) |
| JP (1) | JPS6465671A (en) |
| KR (1) | KR970006034B1 (en) |
| DE (1) | DE3851680T2 (en) |
| GB (1) | GB2207840B (en) |
Families Citing this family (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6112287A (en) * | 1993-03-01 | 2000-08-29 | Busless Computers Sarl | Shared memory multiprocessor system using a set of serial links as processors-memory switch |
| US5038297A (en) * | 1988-09-13 | 1991-08-06 | Silicon Graphics, Inc. | Method and apparatus for clearing a region of Z-buffer |
| US5249264A (en) * | 1988-11-14 | 1993-09-28 | International Business Machines Corporation | Image display method and apparatus |
| US5161221A (en) * | 1988-12-12 | 1992-11-03 | Eastman Kodak Company | Multi-memory bank system for receiving continuous serial data stream and monitoring same to control bank switching without interrupting continuous data flow rate |
| JP2762502B2 (en) * | 1988-12-29 | 1998-06-04 | ダイキン工業株式会社 | Stereoscopic display method and apparatus |
| US5237650A (en) * | 1989-07-26 | 1993-08-17 | Sun Microsystems, Inc. | Method and apparatus for spatial anti-aliased depth cueing |
| IE63461B1 (en) * | 1989-09-11 | 1995-04-19 | Jeremy Owen Jones | Improvements in and relating to stable memory circuits |
| CA2038412C (en) * | 1990-04-26 | 2001-10-16 | Glenn M. Courtright | Polygon sort engine |
| EP0467394B1 (en) * | 1990-07-20 | 1999-10-20 | Kabushiki Kaisha Toshiba | Graphic processor |
| EP0492938B1 (en) * | 1990-12-21 | 1995-11-22 | Sun Microsystems, Inc. | Method and apparatus for increasing the speed of operation of a double buffered display system |
| US5375196A (en) * | 1990-12-27 | 1994-12-20 | Calcomp Inc. | Rapid line drawing in computer graphics employing floating-point arithmetic |
| US5404448A (en) * | 1992-08-12 | 1995-04-04 | International Business Machines Corporation | Multi-pixel access memory system |
| US5321809A (en) * | 1992-09-11 | 1994-06-14 | International Business Machines Corporation | Categorized pixel variable buffering and processing for a graphics system |
| GB2278524B (en) * | 1993-05-28 | 1997-12-10 | Nihon Unisys Ltd | Method and apparatus for rendering visual images employing area calculation and blending of fractional pixel lists for anti-aliasing and transparency |
| JP3807754B2 (en) * | 1993-12-30 | 2006-08-09 | インターナショナル・ビジネス・マシーンズ・コーポレーション | Self-timed real-time data transfer in video RAM |
| JPH0822556A (en) * | 1994-07-08 | 1996-01-23 | Ricoh Co Ltd | Texture mapping device |
| US5561750A (en) * | 1994-09-22 | 1996-10-01 | Seiko Epson Corporation | Z-buffer tag memory organization |
| DE19516090C2 (en) * | 1995-05-03 | 1997-03-06 | Vdo Luftfahrtgeraete Werk Gmbh | Method for displaying objects using an image display device |
| JPH09212412A (en) * | 1996-02-06 | 1997-08-15 | Sony Computer Entertainment:Kk | Memory access method and data processor |
| WO1997044776A2 (en) * | 1996-05-17 | 1997-11-27 | Philips Electronics N.V. | Display device |
| US5933156A (en) * | 1997-12-03 | 1999-08-03 | Margolin; Jed | Z-Buffer for row addressable graphics memory with flash fill |
| US8081182B2 (en) * | 2004-03-03 | 2011-12-20 | Qualcomm Incorporated | Depth buffer for rasterization pipeline |
| US8194016B2 (en) * | 2007-09-26 | 2012-06-05 | Chimei Innolux Corporation | Liquid crystal display with peep-preventing function |
| EP2201530B1 (en) * | 2007-10-03 | 2018-05-30 | Telefonaktiebolaget LM Ericsson (publ) | Method, compressor, decompressor and signal representation for lossless compression of pixel block values using row and column slope codewords |
| US9665951B2 (en) * | 2007-12-20 | 2017-05-30 | Telefonaktiebolaget Lm Ericsson (Publ) | Unified compression/decompression graphics architecture |
| US8643644B2 (en) * | 2008-03-20 | 2014-02-04 | Qualcomm Incorporated | Multi-stage tessellation for graphics rendering |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0065423A1 (en) * | 1981-05-19 | 1982-11-24 | Western Electric Company, Incorporated | Method and appratus for compiling digital image information |
| EP0116737A2 (en) * | 1983-01-17 | 1984-08-29 | Lexidata Corporation | Three-dimensional display system |
| EP0180385A1 (en) * | 1984-10-31 | 1986-05-07 | Sony Corporation | Video signal processing cicuits |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5952380A (en) * | 1982-09-17 | 1984-03-26 | Victor Co Of Japan Ltd | Interpolating device |
| US4748572A (en) * | 1984-12-05 | 1988-05-31 | The Singer Company | Video processor architecture with distance sorting capability |
| US4625289A (en) * | 1985-01-09 | 1986-11-25 | Evans & Sutherland Computer Corp. | Computer graphics system of general surface rendering by exhaustive sampling |
| US4679041A (en) * | 1985-06-13 | 1987-07-07 | Sun Microsystems, Inc. | High speed Z-buffer with dynamic random access memory |
-
1987
- 1987-08-07 GB GB8718807A patent/GB2207840B/en not_active Expired - Lifetime
-
1988
- 1988-07-26 DE DE3851680T patent/DE3851680T2/en not_active Expired - Fee Related
- 1988-07-26 EP EP88201614A patent/EP0307019B1/en not_active Expired - Lifetime
- 1988-07-28 US US07/225,336 patent/US4924415A/en not_active Expired - Fee Related
- 1988-08-05 JP JP63194699A patent/JPS6465671A/en active Pending
- 1988-08-06 KR KR1019880010065A patent/KR970006034B1/en not_active IP Right Cessation
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0065423A1 (en) * | 1981-05-19 | 1982-11-24 | Western Electric Company, Incorporated | Method and appratus for compiling digital image information |
| EP0116737A2 (en) * | 1983-01-17 | 1984-08-29 | Lexidata Corporation | Three-dimensional display system |
| EP0180385A1 (en) * | 1984-10-31 | 1986-05-07 | Sony Corporation | Video signal processing cicuits |
Non-Patent Citations (1)
| Title |
|---|
| ELECTRONIC DESIGN * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3851680D1 (en) | 1994-11-03 |
| EP0307019A2 (en) | 1989-03-15 |
| GB8718807D0 (en) | 1987-09-16 |
| KR970006034B1 (en) | 1997-04-23 |
| US4924415A (en) | 1990-05-08 |
| GB2207840B (en) | 1991-09-25 |
| GB2207840A (en) | 1989-02-08 |
| EP0307019B1 (en) | 1994-09-28 |
| DE3851680T2 (en) | 1995-04-27 |
| JPS6465671A (en) | 1989-03-10 |
| KR890004235A (en) | 1989-04-20 |
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|---|---|---|---|
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| 17P | Request for examination filed |
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|
| RAP3 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: N.V. PHILIPS' GLOEILAMPENFABRIEKEN Owner name: PHILIPS ELECTRONICS UK LIMITED |
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| 17Q | First examination report despatched |
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